Yamato Scientific Co.,Ltd. www.yamato-scientific.com2002

Water Bath (Precision Constant Temp.)BK ∙ BA Series

Specifications

BK series - Fixed temperature operationBA series - Program operation.In addition to BK series function, BA series adopted controller with program operation function (1 pattern 30 steps or 2 pattern 15 steps).Tank capacity: 27L, 42L, 70L, 109L, 144LExtremely high degree of temperature adjustment precision achieved by adopting high-precision thermostat and circulation pump.Digital display setting and indicated value of temperature and time.Equipped with observation window.Optional items include cooling coil, top cover, mounting rack, and viscosity meter support.

Product code 221144 221153 221145 221154 221146 221155 221147 221156 221148 221157

Model BK300 BA300 BK400 BA400 BK500 BA500 BK610 BA610 BK710 BA710Stirring method Stir by pumpOperating temp. range RT+5~80°C

Temp. control accuracy*1 ±0.02~±0.07°C

Temp. distribution accuracy*1 ±0.3°C

Max. temp. reaching time*1 Approx. 120min. Approx. 110min. Approx. 165min. Approx. 160min. Approx. 200min.

Approx. 200min.

Interior material Stainless steel and glass

Temp. controller PID control by microprocessor (BK: Fixed temperature operation, BA: Fixed temperature and program operation, 1 pattern 30 steps or 2 pattern 15 steps)

Sensor W sensor: Pt resistance thermometer, Pt 100Ω(temp. controller) + K thermocouple (overheat protector)Temp. setting / display method Digital setting / displayOverheat protector ON / OFF by microprocessorHeater (SUS316) 1.3kW 2.2kW 2.4kW 3.5kW 4.5kWStirring System (Magnet pump) 6W 30W 60WTimer 1min.~99hrs. 59min. to 999hrs. 50mins, digital setting, Auto start, auto stop, quick auto stop

Safety device Self-diagnotic functions (Heater disconnection, SSR short circuit, Abnormal sensor, over current), Electric leakage breaker, over heat protector

Internal dimensions*2 W300×D300×H300mm W400×D350×300mm W500×D400×350mm W548×D500×400mm W640×D500×H450mm

External dimensions*2 W490×D360×H367mm 590×D410×H367mm W690×D460×H417mm W738×D560×H467mm W830×D560×H517mmWindow dimensions W240×H215mm W340×H215mm W440×H265mm W340×H215mm W440×H265mmBath capacity Approx. 27L Approx. 42L Approx. 70L Approx. 109L Approx. 144LShelf pitch 30mmNumber of plates 5pcs. 6pcs. 9pcs. 10pcs.Drain hose (Dia. ) ø15×20mm

Power source 50/60HzSingle phase AC100V / AC220V Single phase AC220V14 / 7A 23A / 11A 25A / 12A 18A 23A

Weight Approx. 19kg Approx. 25kg Approx. 30kg Approx. 36kg Approx. 46kgIncluded accessories Shelf plate 1pc., clamp 2pcs., stand 1pc., clamp holder 2pcs., tube connector 1pc., drainage cap 1pc.

Optional accessories Shaking rack / Viscometer holder/Cooling coil (for 300/400/500 series),External circulating pump / Top cover (for all models), Trolley with caster (for 610/710 series)

BK / BA Series

RT+5~80°C ±0.02°C~±0.07°C 27LBK/BA300

42LBK/BA400

70LBK/BA500

109LBK/BA610

144LBK/BA710

Bath capacity

Operating temp. range

Temperature control accuracy

*1 Conditions: Temp. 20°C (no load), Power source 50Hz. *2 Do not include protrusions. The length of the power cord is about 2m outside the unit.

www.yamato-scientific.comYamato Scientific Co.,Ltd.2002

Applicable model Specifications Product

codeBK/BA300, BK/BA400, BK/BA500

Nickel-plated copper tubeI.D. 8mm×O.D.12mm×1.8m length 221182

Control Panel

BK series control panel BA series control panel

Temperature Rising Curve

710model

80℃

60℃

40℃

20℃

0℃30min. 60min. 80min. 120min. 150min. 180min.

610model

400model

300model

500model

Shaking unit

Shaking rack Spring pitch (Vertical/Horizontal 20 mm)

Cart with casters

Viscometer holder

External circulating pump

Top lid

Coolong coil

Model Specifications Product code

BN300 Shaking Width: 10 to 30mm changeableShaking Times: 20 to 160 times/min. 221506

Applicable model Specifications Product

codeBK/BA300 294×272×148.5mm 221195BK/BA400 394×322×148.5mm 221196BK/BA500 494×372×148.5mm 221197

Applicable model Model Product

codeBK/BA610 OBK62 221385BK/BA710 OBK72 221386

Applicable model Specifications Product

codeBK/BA300 for 4 viscometers 221189BK/BA400 for 4 viscometers 221183BK/BA500 for 5 viscometers 221184

Model Specifications Product code

PT-16

Operating temp. range: Room temp. to 80°CLift : Approx. 2m Water flow: approx. 9 L/min (at the head 0)Connection diameter: O.D. 17mm

221190

Applicable model Specifications Product

codeBK/BA300

Made of stainless steel

221192BK/BA400 221193BK/BA500 221194BK/BA610 221383BK/BA710 221384

Convenient for cooling the water bath and testing at room temperature. (Cooling water hose not included)

Viscometers such as Cannon-fenske type and Ubbelohde type can be attached and are convenient for measuring kinematic viscosity.(If kinematic viscosity is measured using a BK/BA type water bath, it does not comply with JIS K 2283.)

The solution at constant temperature is continuously fed into a distillation column, refractometer, or other equipment with a closed circulation, and can be circulated between them to keep warm or or heating.

BK400+BN300

Top lidfor BK/BA300

Top lidfor BK/BA500 Top lid for BK/BA610, 710

Top lidfor BK/BA400

Optional items

BK / BA Series